Google wallet question?

I have never added fund to the prepaid card but i want to now. Is there a credit card fee? similar to a cash advance fee? Or does it appear as a regular charge on your credit card? I am not sure how this works.

Another thing to note is that after you reload it more than 3 times, it makes you verify your identity by submitting your SSN and some other info before adding more funds. I lost out on a couple of bucks I had on it, but I also got the free $10 when I signed up, so I guess it evens out.